#57 Nitro Heavy Duty Jobber Drill Bits 12 pack B5/8-11 x 2 3/4 Part #43131C200SS-300

Part #43131C200SS-300

Part # AFX-ABA42

POLISHED FACE

Part #313037FZC-100

Part # 480N044

#57 Nitro Heavy Duty Jobber Drill Bits 12 pack B5/8-11 x 2 3/4 Part #43131C200SS-300Need a large quantity? Request bulk pricing here. #57 Nitro Heavy Duty Jobber Drills, High Speed Steel Pack of 12 Manufactured from a premium grade of M 7N molybdenum high speed steel. The Nitro Heavy Duty 135 degree Split Point drill with a Nitride surface treatment that give a hard protective layer to the drill (increases hardness without increasing brittleness) which is measurably harder than high speed steel. Body and clearance are gold and black